Note: Commercial Mobile Alert System uses these values if the event code is missing or does not match the required event codes.

Urgency: Select the urgency of the event

Immediate: Take immediate action

Expected: Take action soon (within the next hour)

Future: Take action in the near future

Past: Responsive action is no longer required

Unknown: Urgency not known

Severity: Select the severity of the event

Extreme: Extraordinary threat to life or property

Severe: Significant threat to life or property

Moderate: Possible threat to life or property

Minor: Responsive action is no longer required

Unknown: Severity unknown

Note: For CMAS/WEA - Only those alerts with an urgency of immediate or expected meet the requirements of the Commercial Mobile Alert System Imminent Threat alert.

Certainty: Select the status of the event

Observed: Ongoing or has occurred

Likely: Probability is greater than or equal to 50%

Possible: Probability is less than 50%

Unlikely: Not expected to occur

Unknown: Certainly unknown

Note: For CMAS/WEA - Only those alerts with an urgency of immediate or expected meet the requirements of the Commercial Mobile Alert System Imminent Threat alert.

Event Response: Select an applicable response to the event

Shelter: Take shelter in place or per instruction

Evacuate: Relocate as instructed in the instruction

Prepare: Make preparations per the instruction

Execute: Execute a pre-planned activity identified in instruction

Avoid: Avoid the subject event as per the instruction

Monitor: Attend to information sources as described in instruction only

Composeyour message

WEA Text: Enter your WEA message

Note: This text appear in one-way radio broadcats that send to cell phones or mobile devices based on the receipient's proximity to the selected cell tower.

Note: The WEA Text must not be longer than 90 characters.

Headline: Create a brief, human-readable headline

Note: For the NWS HazCollect system, the headline must be no longer than 160 characters including blank spaces. Internet services may use the headline value to populate Short Message Service (SMS) text, intended for subscriber-based, non-CMAS mobile systems, in which case the number of characters may be limited to 140.

Description: Create an extended, human-readable description of the hazard or event

Note: This is where you place the important information (who, what, when, and where) about the hazardous situation.

Note: The Commercial Mobile Alert System does not use the value of this element, but you should use this for all alerts routed to the Emergency Alert System and HazCollect.

Instructions: Create a description of the recommended action for message recipients to take

Note: This is where you place the important information (how and why) of your protective behavior instruction.

Note: The Commercial Mobile Alert System does not use the value of this element, but you should use this for all alerts routed to the Emergency Alert System and HazCollect.

Note: The FCC limits Broadcast EAS messages to two minutes. For HazCollect, the total number of words for the description and instruction combined should not exceed 160 words. This is a good rule of thumb for all EAS messages.